Here it says, Shuttle DS87 supports three independent displays. What does this mean?
Usually, when we connect 2nd or 3rd monitor to a computer, aren't they independent?
I hope my question doesn't sound stupid... :)
A lot of older graphics cards supported a maximum of 2 displays and until recently 3 or more displays was considered niche. This is why people are currently stating explicitly that 3 displays are possible.
With older graphics cards that had more than 2 connectors but supported only running 2 of those independently, the extra displays usually had to be the same as one of the other displays, hence non-independent.
Most modern graphics cards support 3 or 4 displays using DisplayPort adaptors.